Ayeixa MCP Guardian offers security middleware for Model Context Protocol servers

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A pre-release open-source tool called Ayeixa MCP Guardian has been introduced to address security risks in Model Context Protocol (MCP) servers, which allow language models to interact with databases, filesystems, and CLI utilities. The middleware provides capability fencing, parameter sanitization, and audit logging to block threats such as directory traversal attacks and destructive shell commands. It includes four core components: a role-based access control fence, an invocation sanitizer, a cryptographic audit logger, and a permission-gated execution sandbox. Released as version v0.1.0-alpha under the Apache-2.0 license, the project is hosted on GitHub and has passed all six hermetic unit tests. Public npm registry publication is still pending, and the developers are inviting security researchers and contributors to evaluate the tool locally.

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